Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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A Study on the Concentration and Light Extinction of Atmospheric Aerosol in Seoul

서울 대기 에어로솔의 농도와 광소산에 관한 연구

  • 김필수 (한양대학교 자연과학대학 물리학과) ;
  • 오미석 (한양대학교 자연과학대학 물리학과) ;
  • 김의훈 (한양대학교 자연과학대학 물리학과)
  • Published : 1991.12.01
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Abstract

This study deals with concentration and light extinction of atmospheric aerosol in Seoul. From the measured aerosol size distribution for particle diameter ranging from 0.01 $\mum \sim 1.0 \mum$, extinction coefficient is calculated using the Mie theory. The results show that the diurnal variation of aerosol concentration, in general, reveals the lowest concentration in early morning and afternoon, while the highest at about 8 O'clock owing to the heavy traffic and accumulation of air pollution in the low atmosphere. However, aerosol concentration and extinction coefficient on April 7 give low values due to the advective wind. On the other hand, high aerosol concentration and extinction coefficenat are recorded on April 10 although solar radiation is weak. From the distribution of extinction coefficient we can find that aerosol particles of 0.1 $\mum \sim 1.0 \mum$ in diameter are highly effective on light extinction.

Keywords

References

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